Happy Days is a 2007 Indian Telugu-language musical coming of age film written, produced and directed by Sekhar Kammula.

The film features Varun Sandesh, Tamannaah Bhatia, Rahul Haridas, Nikhil Siddharth, Vamsee Krishna, Sonia Deepti, Gayatri Rao, and Monali Chowdhary in the lead roles.

They bond as they go through bullying-seniors, stringent professors, intense examinations, over the top celebrations, love, betrayal, sacrifice and every other possible emotion that an individual can experience in a college.

Sekhar Kammula held a talent search at Big FM and idlebrain.com and managed to select seven of the eight lead actors.

Damidi Kamalakar Reddy, founding Secretary and Treasurer of Chaitanya Engineering College, acted as a Professor/Lecturer in a brief cameo role.

He had to arrange a special screening of Anand to the chairman of CBIT and its board members to convince them for an on-site shoot.

The guests for the evening included BN Reddy (CBIT), Kamalakar Reddy (CBIT), Dil Raju, Sekhar Kammula, Ravi Naidu (BIG Music), Mahesh Kumar (Reliance business head), Ilayaraja, Swapna, C Vijaya Kumar, Ashok and the star cast.

All tracks are written by Siju ThuravoorHappy Days was released on 28 September 2007 in the United States and 2 October 2007 in India.